Walther von Wartburg (-Boos) (18 May 1888; Riedholz – 15 August 1971; Basel) was a Swiss philologist and lexicographer.
After studying at the universities of Berne, Zurich, Florence and Paris (The Sorbonne), in 1918 he presented his doctoral thesis Zur Benennung des Schafes in den romanischen Sprachen ("Names for sheep in Romance languages").
His chief work is without a doubt the "Etymological French Dictionary" (whose original German title is Französisches Etymologisches Wörterbuch).
Il ne récompense pas nécessairement un ouvrage paru dans l'année précédente : il peut aussi marquer l'ensemble d'une œuvre ou un livre plus ancien: "Defender of the French language, remarkable for the elegance of his writing and/or for his non-conformity.
He was married four times, the last to the Swiss German debutante Fräulein Gisela von Richthoffen.